Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

The ready biodegradability of the registered substance in water was determined via read-across to the results of biodegradation testing on a structurally similar substance (tosyl salt). The substance was found to be readily biodegradable, but not meeting the 10 day window criteria. The main usage of the substance is in offshore locations associated with no exposure to agricultural soil. The risk of exposure to soil from manufacture and onshore use is from application of STP sludge to agricultural soil. As the substance is very water soluble, the substance does not absorb well to STP sludge, so the potential exposure is extremely small. Therefore, the PNEC for soil has been derived from the aquatic toxicity (based on study results) using the partition coefficient method, as described in the ECHA Guidance Document "Guidance on Information Requirements Part B: Hazard Assessment". The hazard and risk derived using this method was found to be minimal.